JavaScript - Hide a Div at startup (load)

Question

I have a div in my php page that uses jQuery to hide it once the page has loaded. But is there a way to hide it from the very start of loadup?

The reason I ask is be

Answer 1

Using CSS you can just set display:none for the element in a CSS file or in a style attribute

#div { display:none; }

or having the js just after the div might be fast enough too, but not as clean